package com.business.common.aspect;

import com.business.common.utils.IPUtils;
import com.business.common.utils.SystemClock;
import com.business.common.dto.R;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

@Aspect
@Component
public class WebLogAspect {

    private static final Logger logger = LoggerFactory.getLogger(WebLogAspect.class);

    /**
     * 匹配controller
     */
    @Pointcut("execution( * com.business..controller.*.*(..))")//两个..代表所有子目录，最后括号里的两个..代表所有参数
    public void logController() {
    }


    @Before("logController()")
    public void doBefore(JoinPoint joinPoint) {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        logger.info("请求地址 : " + request.getRequestURL().toString());
        logger.info("HTTP METHOD : " + request.getMethod());
        // 获取真实的ip地址
        logger.info("IP : " + IPUtils.getIpAddr2(request));
        logger.info("参数 : " + Arrays.toString(joinPoint.getArgs()));
    }

    /**
     * controller 返回值
     * @param ret
     * @throws Throwable
     */
    @AfterReturning(returning = "ret", pointcut = "logController()")// returning的值和doAfterReturning的参数名一致
    public void doAfterReturning(Object ret)  {
        // 处理完请求，返回内容
        if (logger.isDebugEnabled() || ( ret instanceof R && ((R) ret).getCode() != 0) ){
            logger.debug("返回值 : " + ret);
        }
    }


    @Around("logController()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = SystemClock.now();
        Object ob = pjp.proceed();// ob 为方法的返回值
        long takeUpTime = (SystemClock.now() - startTime);
        logger.info("耗时:"+takeUpTime);
        return ob;
    }
}
